Pair of headphones



FIG. 1 is a perspective view of a pair of headphones, showing our new design;

FIG. 2 is an opposing perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a side view thereof;

FIG. 6 is an opposing side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a front view thereof, in a nesting condition.

The broken lines showing the environment in the Figures are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a pair of headphones, as shown and described. 